Home / 12,127,951.20-18,191,926.80-9,975,615.15

Finding the Fourth Proportional to 12,127,951.20, 18,191,926.80 and 9,975,615.15

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Solution

The fourth proportional to 12,127,951.20, 18,191,926.80 and 9,975,615.15 is: 14,963,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,951.20 : 18,191,926.80 = 9,975,615.15 : x
  2. Step 2: Convert to fraction form
    12,127,951.20/18,191,926.80 = 9,975,615.15/x
  3. Step 3: Cross multiply
    12,127,951.20x = 18,191,926.80 × 9,975,615.15
  4. Step 4: Simplify right side
    12,127,951.20x = 181,475,660,593,771.03
  5. Step 5: Solve for x
    x = 181,475,660,593,771.03/12,127,951.20
  6. Step 6: Final answer
    x = 14,963,422.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.